[PATCH] number of pending events
[email protected] (Graham Barr)
| Newsgroups | perl.loop |
|---|---|
| Message-ID | <[email protected]> |
The attached patch allows you to obtain the number of events
for a watcher that are still in the event queue. It also removes
unwanted ;'s from the typemap.
The situation where I have used this to force an event to
happen, unless I know one is already pending. eg
$idle = Event->idle( cb => sub { warn "idle" }, parked => 1);
then when I want this event to happen I can do
$idle->now unless $idle->pending;
Graham.
patch
(text/plain, 1 KB)
--- Event-0.63/lib/Event.pod.orig Fri Feb 4 22:06:54 2000
+++ Event-0.63/lib/Event.pod Fri Feb 4 22:08:47 2000
@@ -179,6 +179,11 @@
Reports whether the C<$watcher> is suspended.
+=item $watcher->pending
+
+Returns how many events this watcher has with the callback still pending
+in the event queue.
+
=back
=head2 Watcher Types
--- Event-0.63/Event.xs.orig Wed Feb 2 18:21:15 2000
+++ Event-0.63/Event.xs Fri Feb 4 22:05:07 2000
@@ -531,6 +531,13 @@
}
}
+int
+pe_watcher::pending()
+ CODE:
+ RETVAL = THIS->event_counter;
+ OUTPUT:
+ RETVAL
+
void
pe_watcher::again()
CODE:
--- Event-0.63/typemap.orig Fri Feb 4 22:03:51 2000
+++ Event-0.63/typemap Fri Feb 4 22:04:09 2000
@@ -6,15 +6,15 @@
INPUT
O_WATCHER
- $var = ($type) sv_2watcher($arg);
+ $var = ($type) sv_2watcher($arg)
O_EVENT
- $var = ($type) sv_2event($arg);
+ $var = ($type) sv_2event($arg)
OUTPUT
O_WATCHER
- croak("use watcher_2sv($var)");
+ croak("use watcher_2sv($var)")
O_EVENT
- croak("use event_2sv($var)");
+ croak("use event_2sv($var)")